01 - Preheat oven to 425°F.
02 - In a small bowl, whisk together olive oil, lime juice, soy sauce, white vinegar, paprika, cumin, garlic powder, oregano, pepper, and salt until well combined.
03 - Pat chicken completely dry with paper towels. Rub marinade thoroughly over entire chicken, working under the skin and inside the cavity for maximum flavor penetration.
04 - Place chicken breast side up on a rack in a roasting pan. Let stand at room temperature for 20 minutes to allow marinade to absorb, or refrigerate up to 12 hours for deeper flavor.
05 - Roast for 1 hour to 1 hour 10 minutes, until the thickest part of the thigh reaches 165°F and juices run clear when pierced.
06 - Transfer chicken to a cutting board and rest for 10 minutes before carving to allow juices to redistribute.
07 - While chicken rests, combine cilantro, jalapeños, garlic, mayonnaise, sour cream, lime juice, olive oil, salt, and pepper in a blender. Process until completely smooth and vibrant green.
08 - Carve chicken into serving pieces and arrange on a platter. Serve with creamy green sauce on the side for dipping.